A fill material supply system
By optimizing the material conveying path through the cross-shaped arrangement of conveyors and equipment, the problems of large footprint and long material conveying distance in mine filling equipment are solved, thereby improving production efficiency and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FENY
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-09
AI Technical Summary
Existing mine filling equipment occupies a large area and involves long material transportation distances, which affects production efficiency.
Design a filling material supply system, including a first conveyor, a crusher, a screening machine, a waiting silo, and a mixer. The conveyors are arranged in a cross pattern to reduce the equipment footprint and optimize the material conveying path.
It effectively shortens the material conveying path, improves production efficiency, facilitates personnel operation, and reduces equipment costs and maintenance difficulty.
Smart Images
Figure CN224339037U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of mine backfilling equipment technology, specifically to a backfilling material supply system. Background Technology
[0002] In real-world scenarios, the efficient development of mineral resources and environmental protection are receiving increasing attention. With the expansion of production scale, traditional open-pit mining methods are becoming increasingly inefficient and have a significant environmental impact due to their high transportation costs. To meet the sustainable development needs of modern mines, mine backfilling technology is now generally used in the mining process to manage the goaf areas.
[0003] In the process of preparing filling slurry, various equipment is required to crush, screen and transport materials such as coal gangue and tailings to the mixing equipment for mixing in order to obtain filling slurry. Various equipment occupies a large area and the material transportation distance is long. If the equipment design is not reasonable, it will often affect the production efficiency. Utility Model Content
[0004] In view of this, this application provides a filling material supply system that can effectively improve production efficiency.
[0005] This application provides a filling material supply system, including: a first conveyor, a crusher, a second conveyor, and a screening machine. The first conveyor is used to convey material to the crusher for crushing, and the second conveyor is used to convey the crushed material to the screening machine for screening; a third conveyor, a waiting hopper, a fourth conveyor, and a mixer. The third conveyor is used to convey the screened material to the waiting hopper, and the fourth conveyor is used to convey the material supplied from the waiting hopper to the mixer for mixing. The first and second conveyors are arranged adjacent to each other in a first horizontal direction, and the conveying directions of the first and second conveyors are arranged perpendicularly to each other in the vertical direction. The third and fourth conveyors are also adjacent to each other in the first horizontal direction, and the conveying directions of the third and fourth conveyors are arranged perpendicularly to each other in the vertical direction. The third conveyor is arranged along a second horizontal direction on one side of the first conveyor, and the fourth conveyor is arranged along the second horizontal direction on one side of the second conveyor, where the second horizontal direction is perpendicular to the first horizontal direction.
[0006] In one specific implementation, the first conveyor has a first feed end at the end near the third conveyor, and a first discharge end at the end away from the third conveyor, the height of the first discharge end being greater than the height of the first feed end; the crusher is configured to be located near the first discharge end.
[0007] In one specific implementation, the second conveyor has a second feed end at the end away from the third conveyor, and a second discharge end at the end closer to the third conveyor, the height of the second discharge end being greater than the height of the second feed end; the second feed end is positioned close to the crusher, and the screening machine is positioned close to the second discharge end.
[0008] In one specific implementation, the third conveyor has a third feed end at the end close to the first conveyor and a third discharge end at the end away from the first conveyor, the height of the third discharge end being greater than the height of the third feed end; the third feed end is positioned close to the screening machine, and the waiting hopper is positioned close to the third discharge end.
[0009] In one specific implementation, the fourth conveyor has a fourth feed end at the end away from the first conveyor and a fourth discharge end at the end close to the first conveyor. The height of the fourth discharge end is greater than the height of the fourth feed end. The fourth feed end is located close to the waiting hopper, and the mixer is located close to the fourth discharge end.
[0010] In one specific implementation, the screening machine is provided with a feeding chute and a return chute. The feeding chute guides the material screened by the screening machine that is no larger than a preset particle size into the third feed end of the third conveyor, and the return chute guides the material screened by the screening machine that is larger than the preset particle size into a material recycling device.
[0011] In one specific implementation, the system further includes a first working platform, with the screening machine and the mixer respectively located near the first working platform, and the first feed end, the second discharge end, the third feed end, and the fourth discharge end respectively located near the first working platform; and / or further includes a second working platform, with the crusher located near the second working platform, and the first discharge end and the second feed end respectively located near the second working platform; and / or further includes a third working platform, with the waiting hopper located near the third working platform, and the third discharge end and the fourth feed end respectively located near the third working platform.
[0012] In one specific implementation, the angle between the conveying direction of the first conveyor and the horizontal plane ranges from 14° to 20°; and / or the angle between the conveying direction of the second conveyor and the horizontal plane ranges from 13° to 19°; and / or the angle between the conveying direction of the third conveyor and the horizontal plane ranges from 9° to 15°; and / or the angle between the conveying direction of the fourth conveyor and the horizontal plane ranges from 11° to 17°.
[0013] In one specific embodiment, a fluid supply device is also included, which includes a liquid storage device and a stirring device. The stirring device has a stirring chamber and a stirring element disposed in the stirring chamber. The stirring chamber is connected to the liquid storage device and the stirrer respectively, so as to stir the fluid flowing into the liquid storage device and then deliver it to the stirrer.
[0014] In one specific implementation, a filling pump is also included, which is connected to the mixer to deliver the slurry produced by the mixer to the target area.
[0015] The filling material supply system provided in the embodiments of this application includes: a first conveyor, a crusher, a second conveyor, a screening machine, a third conveyor, a waiting hopper, a fourth conveyor, and a mixer. The first conveyor is used to convey material to the crusher for crushing; the second conveyor is used to convey the crushed material to the screening machine for screening; the third conveyor is used to convey the screened material to the waiting hopper; and the fourth conveyor is used to convey the material supplied from the waiting hopper to the mixer for mixing. The first and second conveyors are arranged adjacent to each other in a first horizontal direction, and the conveying directions of the first and second conveyors are arranged perpendicularly to each other in the vertical direction. The third and fourth conveyors are also arranged adjacent to each other in a first horizontal direction, and the conveying directions of the third and fourth conveyors are arranged perpendicularly to each other in the vertical direction. The third conveyor is arranged along a second horizontal direction on one side of the first conveyor; the fourth conveyor is arranged along a second horizontal direction on one side of the second conveyor, and the second horizontal direction is perpendicular to the first horizontal direction. The filling material supply system places the first feed end, the second discharge end, the screening machine, and the mixer in the middle, the first discharge end, the second feed end, and the crusher at one end, and the third discharge end, the fourth feed end, and the waiting hopper at the other end. This reduces the equipment footprint, helps to shorten the material conveying path, and facilitates personnel operation, thereby effectively improving production efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 A front view of a filling material supply system provided in an embodiment of this application;
[0018] Figure 2This is a top cross-sectional view of a filling material supply system provided in an embodiment of this application.
[0019] Explanation of key figure labels:
[0020] 100 - Filling material supply system; 11 - First conveyor; 111 - First feed end; 112 - First discharge end; 12 - Second conveyor; 121 - Second feed end; 122 - Second discharge end; 13 - Third conveyor; 131 - Third feed end; 132 - Third discharge end; 14 - Fourth conveyor; 141 - Fourth feed end; 142 - Fourth discharge end; 20 - Crusher; 30 - Screening machine; 40 - Waiting bin; 50 - Mixer; 61 - First working platform; 62 - Second working platform; 63 - Third working platform; 70 - Fluid supply equipment; 80 - Filling pump. Detailed Implementation
[0021] The embodiments of this application will now be described in detail with reference to the accompanying drawings.
[0022] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.
[0023] Currently, in the preparation of mine backfill slurry, various equipment is required to crush, screen, and transport materials such as coal gangue and tailings to mixing equipment for stirring to obtain the backfill slurry. These equipment pieces occupy a large area, and the material transport distance is long. If the equipment design is unreasonable, it often affects production efficiency. To solve these problems, such as... Figure 1 As shown, an embodiment of this application provides a filling material supply system 100, which may include: a first conveyor 11, a crusher 20, a second conveyor 12, a screening machine 30, a third conveyor 13, a waiting silo 40, a fourth conveyor 14, and a mixer 50.
[0024] The first conveyor 11 is used to convey materials to the crusher 20 for crushing; the second conveyor 12 is used to convey the crushed materials from the crusher 20 to the screening machine 30 for screening; the third conveyor 13 is used to convey the screened materials from the screening machine 30 to the waiting hopper 40; and the fourth conveyor 14 is used to convey the materials supplied from the waiting hopper 40 to the mixer 50 for mixing.
[0025] In this embodiment, the first conveyor 11 and the second conveyor 12 can each be a belt conveyor. The material can be coal gangue, tailings, etc., specifically tailings generated during mining production. For example, the main component of tailings after deep extraction of potash ore is sodium chloride, and tailings can exist in solid or fluid form. If the coal gangue or tailings has a large particle size, it needs to be crushed to make its particle size meet the requirements for mixing and filling. The crusher 20 can be a crushing machine that crushes materials into small particles through compression and bending, such as a roller crusher 20, hammer crusher 20, jaw crusher 20, gyratory crusher 20, cone crusher 20, and impact crusher 20. The screening machine 30 can be a drum screen, which controls the sorting of materials by particle size. The drum screen cylinder can be divided into multiple sections, with the screen holes arranged from small to large. The screen holes on each section have the same diameter. When the material enters the drum screen, due to the tilting and rotation of the drum screen, the material on the screen surface tumbles and rolls, allowing qualified material to be discharged through the discharge port of the drum screen, and unqualified material to be discharged through the discharge outlet of the drum screen. Due to the tumbling and rolling of the material in the drum screen, the material stuck in the screen holes can be ejected, preventing screen hole blockage. The waiting bin 40 can be equipped with a metering device to convey a preset weight of material to the mixer 50. The mixer 50 mixes the material with fluids such as water, mortar, brine, etc., to produce filling slurry. The first conveyor 11 and the second conveyor 12 transfer materials between the crusher 20, screening machine 30, waiting bin 40, and mixer 50, so that the material is processed by various equipment in sequence to produce filling slurry.
[0026] The first conveyor 11 and the second conveyor 12 are arranged adjacent to each other in the first horizontal direction, and the conveying direction of the first conveyor 11 and the conveying direction of the second conveyor 12 are arranged perpendicularly to each other in the vertical direction; the third conveyor 13 and the fourth conveyor 14 are arranged adjacent to each other in the first horizontal direction, and the conveying direction of the third conveyor 13 and the conveying direction of the fourth conveyor 14 are arranged perpendicularly to the first horizontal direction; the third conveyor 13 is arranged on one side of the first conveyor 11 along the second horizontal direction; the fourth conveyor 14 is arranged on one side of the second conveyor 12 along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction.
[0027] In this embodiment, the first conveyor 11 and the second conveyor 12 can be arranged adjacent to each other along a first horizontal direction, such as the front-to-back direction, and the first conveyor 11 and the second conveyor 12 can be arranged inclined along a second horizontal direction, such as the left-to-right direction, and their conveying directions are arranged in a cross shape in the vertical direction; similarly, the third conveyor 13 and the fourth conveyor 14 can also be arranged adjacent to each other along a first horizontal direction, such as the front-to-back direction, and the third conveyor 13 and the fourth conveyor 14 can be arranged inclined along a second horizontal direction, such as the left-to-right direction, and their conveying directions are arranged in a cross shape in the vertical direction.
[0028] Based on the above configuration, a material input / output area can be formed at the end of the first conveyor 11 and the second conveyor 12 that is closer to the third conveyor 13 and the fourth conveyor 14, and another material input / output area can be formed at the end of the first conveyor 11 and the second conveyor 12 that is farther away from the third conveyor 13 and the fourth conveyor 14. Yet another material input / output area can be formed at the end of the third conveyor 13 and the fourth conveyor 14 that is farther away from the first conveyor 11 and the second conveyor 12. This facilitates the arrangement of material handling equipment in each material input / output area, thereby reducing the equipment footprint, shortening the material transportation distance, and facilitating operation management.
[0029] The filling material supply system 100 provided in the embodiments of this application includes: a first conveyor 11, a crusher 20, a second conveyor 12, a screening machine 30, a third conveyor 13, a waiting hopper 40, a fourth conveyor 14, and a mixer 50. The first conveyor 11 is used to convey material to the crusher 20 for crushing; the second conveyor 12 is used to convey the crushed material from the crusher 20 to the screening machine 30 for screening; the third conveyor 13 is used to convey the screened material from the screening machine 30 to the waiting hopper 40; and the fourth conveyor 14 is used to convey the material supplied from the waiting hopper 40 to the mixer 50 for mixing. The first conveyor 11 and the second conveyor 12 are arranged adjacent to each other in the first horizontal direction, and the conveying direction of the first conveyor 11 and the conveying direction of the second conveyor 12 are arranged in a perpendicular direction; the third conveyor 13 and the fourth conveyor 14 are arranged adjacent to each other in the first horizontal direction, and the conveying direction of the third conveyor 13 and the conveying direction of the fourth conveyor 14 are arranged in a perpendicular direction; the third conveyor 13 is arranged on one side of the first conveyor 11 along the second horizontal direction; the fourth conveyor 14 is arranged on one side of the second conveyor 12 along the second horizontal direction, and the second horizontal direction is perpendicular to the first horizontal direction. The filling material supply system 100 has the first feed end 111, the second discharge end 122, the screening machine 30, and the mixer 50 located in the middle, the first discharge end 112, the second feed end 121, and the crusher 20 located at one end, and the third discharge end 132, the fourth feed end 141, and the waiting hopper 40 located at the other end. This reduces the equipment footprint, helps to shorten the material conveying path, and facilitates personnel operation, thereby effectively improving production efficiency.
[0030] Optionally, in one embodiment of this application, the first conveyor 11 is provided with a first feed end 111 at the end near the third conveyor 13, and the first conveyor 11 is provided with a first discharge end 112 at the end away from the third conveyor 13, the height of the first discharge end 112 being greater than the height of the first feed end 111; the crusher 20 is configured to be located near the first discharge end 112.
[0031] The height of the first feed end 111 is lower than that of the first discharge end 112, which is conducive to feeding material into the first feed end 111. Moreover, the feed inlet of the crusher 20 can be set below the first discharge end 112 so that the material can be fed into the crusher 20 by its own weight.
[0032] Optionally, in one embodiment of this application, the second conveyor 12 is provided with a second feed end 121 at the end away from the third conveyor 13, and the second conveyor 12 is provided with a second discharge end 122 at the end near the third conveyor 13. The height of the second discharge end 122 is greater than the height of the second feed end 121. The second feed end 121 is set to be near the crusher 20, and the screening machine 30 is set to be near the second discharge end 122.
[0033] The height of the second feed end 121 is lower than that of the second discharge end 122. By utilizing this height difference, the second feed end 121 can be set below the discharge port of the crusher 20, and the feed port of the screening machine 30 can be set below the second discharge end 122. This facilitates the formation of a conveying channel based on the weight of the material, reducing the configuration of power conveying devices and the risk of material blockage.
[0034] Optionally, in one embodiment of this application, the third conveyor 13 is provided with a third feed end 131 at the end close to the first conveyor 11, and a third discharge end 132 at the end away from the first conveyor 11. The height of the third discharge end 132 is greater than the height of the third feed end 131. The third feed end 131 is set to be close to the screening machine 30, and the waiting bin 40 is set to be close to the third discharge end 132.
[0035] The height of the third discharge end 132 is greater than the height of the third feed end 131, which also makes it easier to set the third feed end 131 below the discharge port of the screening machine 30 and set the feed port of the waiting hopper 40 below the third discharge end 132, so as to use the weight of the material to form a conveying channel.
[0036] Optionally, in one embodiment of this application, the fourth conveyor 14 is provided with a fourth feed end 141 at the end away from the first conveyor 11, and the fourth conveyor 14 is provided with a fourth discharge end 142 at the end close to the first conveyor 11. The height of the fourth discharge end 142 is greater than the height of the fourth feed end 141. The fourth feed end 141 is set close to the waiting hopper 40, and the mixer 50 is set close to the fourth discharge end 142.
[0037] In this embodiment, the fourth discharge end 142 of the fourth conveyor 14 is located at one end close to the first conveyor 11, and the height of the fourth discharge end 142 is greater than the height of the fourth feed end 141. This allows the feed inlet of the mixer 50 to be located below the fourth discharge end 142, and the mixer 50 to be located in the middle of the filling material supply system 100. This allows multiple filling slurry discharge ports to be arranged along the second horizontal direction, such as the left-right direction, thereby effectively utilizing the existing space of the equipment and improving filling efficiency.
[0038] Optionally, in one embodiment of this application, the screening machine 30 is provided with a feeding chute and a return chute. The feeding chute guides the material screened by the screening machine 30 that is not larger than the preset particle size into the third feed end 131 of the third conveyor 13, and the return chute guides the material screened by the screening machine 30 that is larger than the preset particle size into the material recycling device.
[0039] For example, after the material enters the drum screen, the tilting and rotation of the drum screen causes the material on the screen surface to tumble and roll. The qualified material, that is, the material not larger than the preset particle size, is introduced into the third feed end 131 of the third conveyor 13 through the feed chute set at the discharge port of the drum screen. The unqualified material, that is, the material larger than the preset particle size, is introduced into the material recycling device through the return chute set at the discharge port of the drum screen.
[0040] Optionally, in one embodiment of this application, the system further includes a first working platform 61, with the screening machine 30 and the mixer 50 located close to the first working platform 61, and the first feed end 111, the second discharge end 122, the third feed end 131, and the fourth discharge end 142 located close to the first working platform 61; and / or a second working platform 62, with the crusher 20 located close to the second working platform 62, and the first discharge end 112 and the second feed end 121 located close to the second working platform 62; and / or a third working platform 63, with the waiting hopper 40 located close to the third working platform 63, and the third discharge end 132 and the fourth feed end 141 located close to the third working platform 63.
[0041] The first working platform 61, the second working platform 62, and the third working platform 63 can each adopt a frame structure, such as being constructed from metal pipes or plates, and can be equipped with ladders and guardrails. It is understood that by configuring corresponding material handling equipment and working platforms in each material input and output area, centralized management of the material handling equipment is facilitated, avoiding the inconvenience of maintenance caused by excessive dispersion of material handling equipment, reducing equipment and maintenance costs, and improving operational efficiency.
[0042] Optionally, in one embodiment of this application, the angle between the conveying direction of the first conveyor 11 and the horizontal plane is in the range of 14° to 20°; and / or the angle between the conveying direction of the second conveyor 12 and the horizontal plane is in the range of 13° to 19°; and / or the angle between the conveying direction of the third conveyor 13 and the horizontal plane is in the range of 9° to 15°; and / or the angle between the conveying direction of the fourth conveyor 14 and the horizontal plane is in the range of 11° to 17°.
[0043] In this embodiment, based on the differences in frictional properties caused by the different particle sizes, shapes, and structures of materials after being processed by different equipment, the conveying directions of the first conveyor 11, the second conveyor 12, the third conveyor 13, and the fourth conveyor 14 are configured with more suitable inclination angles. This is to ensure that the frictional dynamics of materials in different physical states meet the conveying requirements during the conveying process, thereby improving conveying efficiency. Preferably, the angle between the conveying direction of the first conveyor 11 and the horizontal plane is 17°, the angle between the conveying direction of the second conveyor 12 and the horizontal plane is 16°, the angle between the conveying direction of the third conveyor 13 and the horizontal plane is 12°, and the angle between the conveying direction of the fourth conveyor 14 and the horizontal plane is 14°.
[0044] Optionally, in one embodiment of this application, such as Figure 1 , Figure 2 As shown, it also includes a fluid supply device 70, which includes a liquid storage device and a stirring device. The stirring device has a stirring chamber and a stirring element disposed in the stirring chamber. The stirring chamber is connected to the liquid storage device and the mixer 50 respectively, so as to stir the fluid flowing into the liquid storage device and then deliver it to the mixer 50.
[0045] In this embodiment, the fluid supply device 70 can supply and transport the prepared brine or slurry to the mixer 50. The mixer 50 mixes the fluid with coal gangue, tailings, etc., to produce a filling slurry. The brine can be an aqueous solution of dissolved salts that have not been fully utilized during the mining process. In addition, the fluid supply device 70 is also equipped with a stirring device, which can include a stirring chamber and a stirring element disposed in the stirring chamber. Through the stirring action of the stirring element, the fluid in the stirring chamber can be effectively prevented from settling, making the fluid supplied by the fluid supply device 70 more uniform.
[0046] Optionally, in one embodiment of this application, a filling pump 80 is further included, which is connected to the mixer 50 to transport the slurry produced by the mixer 50 to the target area.
[0047] The filling pump 80 introduces fluid into the pump chamber through mechanical movement and delivers it to the outside through pressure. The outlet of the filling pump 80 can be configured with multiple filling slurry outlets through pipelines to deliver the fluid to the target area, thereby improving filling efficiency.
[0048] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. "Fixed connection" refers to a connection where the relative positional relationship remains unchanged after connection. The directional terms mentioned in the embodiments of this application, such as "upper," "lower," "inner," and "outer," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this application, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. "Multiple" refers to at least two.
[0049] In the embodiments of this application, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," "third," and "fourth" may explicitly or implicitly include one or more of that feature.
[0050] In the embodiments of this application, "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.
[0051] References to "one embodiment" or "some embodiments" as used in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, phrases such as "in one embodiment," "in some embodiments," "in other embodiments," and "in another embodiment" appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.
[0052] The embodiments of this application have been described in detail above. Those skilled in the art can design and modify the device and its usage within the scope of this application according to the on-site construction conditions.
[0053] The various embodiments in this specification are described in a related manner. For the same or similar parts between the various embodiments, please refer to each other. Each embodiment focuses on describing the differences from other embodiments.
[0054] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A filling material supply system, characterized in that, include: A first conveyor, a crusher, a second conveyor, and a screening machine are provided. The first conveyor is used to convey materials to the crusher for crushing, and the second conveyor is used to convey the crushed materials to the screening machine for screening. The system includes a third conveyor, a waiting silo, a fourth conveyor, and a mixer. The third conveyor is used to transport the material screened by the screening machine to the waiting silo, and the fourth conveyor is used to transport the material supplied by the waiting silo to the mixer for mixing. The first conveyor and the second conveyor are arranged adjacent to each other in the first horizontal direction, and the conveying direction of the first conveyor and the conveying direction of the second conveyor are arranged to intersect in the vertical direction. The third conveyor and the fourth conveyor are arranged adjacent to each other in the first horizontal direction, and the conveying direction of the third conveyor and the conveying direction of the fourth conveyor are arranged in an intersecting manner in the vertical direction. The third conveyor is arranged on one side of the first conveyor along the second horizontal direction; the fourth conveyor is arranged on one side of the second conveyor along the second horizontal direction, which is perpendicular to the first horizontal direction.
2. The filling material supply system according to claim 1, characterized in that, The first conveyor has a first feed end at the end near the third conveyor and a first discharge end at the end away from the third conveyor. The height of the first discharge end is greater than the height of the first feed end. The crusher is configured to be located near the first discharge end.
3. The filling material supply system according to claim 2, characterized in that, The second conveyor has a second feed end at the end away from the third conveyor and a second discharge end at the end near the third conveyor. The height of the second discharge end is greater than the height of the second feed end. The second feed end is positioned near the crusher, and the screening machine is positioned near the second discharge end.
4. The filling material supply system according to claim 3, characterized in that, The third conveyor has a third feed end at the end close to the first conveyor and a third discharge end at the end away from the first conveyor. The height of the third discharge end is greater than the height of the third feed end. The third feed end is located close to the screening machine, and the waiting hopper is located close to the third discharge end.
5. The filling material supply system according to claim 4, characterized in that, The fourth conveyor has a fourth feed end at the end away from the first conveyor and a fourth discharge end at the end close to the first conveyor. The height of the fourth discharge end is greater than the height of the fourth feed end. The fourth feed end is located close to the waiting hopper, and the mixer is located close to the fourth discharge end.
6. The filling material supply system according to claim 5, characterized in that, The screening machine is equipped with a feeding chute and a return chute. The feeding chute guides the material screened by the screening machine that is no larger than the preset particle size into the third feed end of the third conveyor. The return chute guides the material screened by the screening machine that is larger than the preset particle size into the material recycling device.
7. The filling material supply system according to claim 5, characterized in that, It also includes a first working platform, with the screening machine and the mixer respectively located near the first working platform, and the first feeding end, the second discharging end, the third feeding end, and the fourth discharging end respectively located near the first working platform; and / or It also includes a second working platform, with the crusher located near the second working platform, and the first discharge end and the second feed end located near the second working platform respectively; and / or It also includes a third working platform, with the waiting hopper located near the third working platform, and the third discharge end and the fourth feed end located near the third working platform respectively.
8. The filling material supply system according to claim 1, characterized in that, The angle between the conveying direction of the first conveyor and the horizontal plane ranges from 14° to 20°; and / or The angle between the conveying direction of the second conveyor and the horizontal plane ranges from 13° to 19°; and / or The angle between the conveying direction of the third conveyor and the horizontal plane ranges from 9° to 15°; and / or The angle between the conveying direction of the fourth conveyor and the horizontal plane ranges from 11° to 17°.
9. The filling material supply system according to claim 1, characterized in that, It also includes a fluid supply device, which includes a liquid storage device and a stirring device. The stirring device has a stirring chamber and a stirring element disposed in the stirring chamber. The stirring chamber is connected to the liquid storage device and the stirrer respectively, so as to stir the fluid flowing into the liquid storage device and then deliver it to the stirrer.
10. The filling material supply system according to claim 1, characterized in that, It also includes a filling pump connected to the mixer to deliver the slurry produced by the mixer to the target area.